Make collab quieter on startup (#8685)

Fix initialization of minio to happen on service start instead of
bootstrap,
don't log errors if extensions are empty or if clickhouse is disabled

Release Notes:

- N/A

script/run-local-minio

@@ -0,0 +1,9 @@
+#!/bin/bash -e
+
+which minio > /dev/null || (echo "installing minio..."; brew install minio/stable/minio)
+mkdir -p .blob_store/the-extensions-bucket
+mkdir -p .blob_store/zed-crash-reports
+
+export MINIO_ROOT_USER=the-blob-store-access-key
+export MINIO_ROOT_PASSWORD=the-blob-store-secret-key
+minio server --quiet .blob_store